diff -uNr openvpn-2.4.7/src/openvpn/console_builtin.c openvpn-2.4.7.mod/src/openvpn/console_builtin.c
--- openvpn-2.4.7/src/openvpn/console_builtin.c	2019-02-20 14:28:20.000000000 +0200
+++ openvpn-2.4.7.mod/src/openvpn/console_builtin.c	2019-09-18 14:32:21.891795281 +0300
@@ -40,6 +40,8 @@
 #include "buffer.h"
 #include "misc.h"
 
+#include <unistd.h>
+
 #ifdef _WIN32
 
 #include "win32.h"
@@ -138,8 +140,6 @@
 #endif   /* _WIN32 */
 
 
-#ifdef HAVE_GETPASS
-
 /**
  * Open the current console TTY for read/write operations
  *
@@ -177,7 +177,6 @@
     }
 }
 
-#endif   /* HAVE_GETPASS */
 
 
 /**
@@ -199,10 +198,6 @@
     ASSERT(capacity > 0);
     input[0] = '\0';
 
-#if defined(_WIN32)
-    return get_console_input_win32(prompt, echo, input, capacity);
-#elif defined(HAVE_GETPASS)
-
     /* did we --daemon'ize before asking for passwords?
      * (in which case neither stdin or stderr are connected to a tty and
      * /dev/tty can not be open()ed anymore)
@@ -247,9 +242,6 @@
             ret = true;
         }
     }
-#else  /* if defined(_WIN32) */
-    msg(M_FATAL, "Sorry, but I can't get console input on this OS (%s)", prompt);
-#endif /* if defined(_WIN32) */
     return ret;
 }